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drivers: gpio: rcar: Add R-Car Gen4 support

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Renesas Gen4 SoCs GPIO IPs are using one more
register comparing to Gen3 SoCs.

The new "INEN" register is used to enable general input.

Signed-off-by: Aymeric Aillet <aymeric.aillet@iot.bzh>
This commit is contained in:
Aymeric Aillet 2023-07-17 15:43:05 +02:00 committed by Anas Nashif
parent c696344f0d
commit eb879413be
1 changed files with 12 additions and 1 deletions
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13
drivers/gpio/gpio_rcar.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2020 IoT.bzh
* Copyright (c) 2020-2023 IoT.bzh
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -52,6 +52,7 @@ struct gpio_rcar_data {
#define FILONOFF 0x28 /* Chattering Prevention On/Off Register */
#define OUTDTSEL 0x40 /* Output Data Select Register */
#define BOTHEDGE 0x4c /* One Edge/Both Edge Select Register */
#define INEN 0x50 /* General Input Enable Register */
static inline uint32_t gpio_rcar_read(const struct device *dev, uint32_t offs)
{
@ -106,6 +107,11 @@ static void gpio_rcar_config_general_input_output_mode(
/* Configure positive logic in POSNEG */
gpio_rcar_modify_bit(dev, POSNEG, gpio, false);
/* Select "Input Enable/Disable" in INEN for Gen4 SoCs */
#ifdef CONFIG_SOC_SERIES_RCAR_GEN4
gpio_rcar_modify_bit(dev, INEN, gpio, !output);
#endif
/* Select "General Input/Output Mode" in IOINTSEL */
gpio_rcar_modify_bit(dev, IOINTSEL, gpio, false);
@ -223,6 +229,11 @@ static int gpio_rcar_pin_interrupt_configure(const struct device *dev,
gpio_rcar_modify_bit(dev, BOTHEDGE, pin, true);
}
/* Select "Input Enable" in INEN for Gen4 SoCs */
#ifdef CONFIG_SOC_SERIES_RCAR_GEN4
gpio_rcar_modify_bit(dev, INEN, pin, true);
#endif
gpio_rcar_modify_bit(dev, IOINTSEL, pin, true);
if (mode == GPIO_INT_MODE_EDGE) {